Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 47

Algoa Bay aperture appears axial Bartsch base become brown Cape capensis central closely collected concentric cusp dead Delagoa Bay diam distinct Distribution Durban East London examples False Bay fathoms figure Fossil granules grooves growth-lines identified intermediaries internally Jaeckel Knysna Krauss larger lateral length less Linn living locality lower margin Martens material metres middle Muir narrow Natal nearly nodules oblique obtained outer P.F. coll pale peripheral Pleistocene Point Port Alfred Port Elizabeth posterior Postnatal whorls present probably Protoconch radial Radula recorded references Remarks ribs River Natal rows Schilder sculpture seems shape shell shows side slightly Smith smooth sometimes South African Museum Sowerby species specimens spiral lirae strong surface suture Table Bay teeth Thiele Tomlin Trifora Turton Type umbilicus upper usually valve Zululand